We're going to solve 1728 multiplied by 3170
1728 × 3170 = 3170 × (1728)
+ 3170 × 8 that equals 25360
+ 3170 × 20 yielding 63400
+ 3170 × 700 that equals 2219000
+ 3170 × 1000 that is equal 3170000

= 5477760
